iBasso DC-Tonfa 8CH R2R Portable DAC & AMP

Features:-

>Advanced R2R Portable DAC/AMP.

>Co-Developed by iBasso Audio and Japan’s E-Star Earphone.

>True 24-Bit 8-Channel Fully Balanced R2R Architecture.

>Total 312 High-Precision Viking Metal Film Resistors.

>Proprietary FPGA Algorithm & Dual Accusilicon Femtosecond Clocks.

>Powerful Player-Grade Amplifier Section(2x TI Dual OPAMPs+4x BUF634A).

>Strong Output: 800mW Per Channel @ 32Ω.

>Linear Technology LT3042 Ultra-Low Noise LDO Power Supply.

>Dedicated NOS Mode+4 Custom Digital Filters.

>4.4mm Balanced and 3.5mm Single-Ended Headphone Outputs.

>0.96” OLED Display Screen.

>Premium Quality Aluminium Alloy Chassis.

>Tempered Glass Front and Back Panels.

>Switchable UAC 2.0 & UAC 1.0 Modes.

iBasso has introduced the all-new DC-Tonfa, a professionally crafted flagship-grade portable R2R DAC/AMP. iBasso has crafted the DC-Tonfa featuring advanced 24-Bit 8-Channel Fully balanced R2R architecture. It is a collaborative masterpiece co-developed by iBasso and e-star Earphone. The DC-Tonfa seamlessly blends the discrete 8-channel R2R network into a singular, cohesive force.  It promises top-tier analog sound that captures the attention of its listeners instantly. iBasso has developed the DC-Tonfa with a specialized 60-resistor hardware compensation network that ensures the ladder DAC works at its absolute full potential. With the iBasso DC-Tonfa, experience the ultimate synergy of discrete architecture, masterful power delivery, and lush R2R musicality!!

Fully-Balanced 8-Channel R2R DAC Architecture:-

The DC-Tonfa introduces a true 24-bit, 8-channel fully differential R2R architecture, engineered to reproduce music with unmatched analog realism. The foundation is laid by a staggering 312 ultra-low temperature drift Viking metal film resistors, delivering exceptional detail and reducing zero-crossing distortion to an absolute minimum. This fully-balanced R2R network ensures a crystal clear sound performance with a rich, organic tone, and next-level clarity.

Proprietary iBasso FPGA Control System:-

The signal accuracy and timing with the advanced 8-channel fully-balanced R2R architecture are precisely managed by iBasso’s proprietary FPGA algorithms. It works dynamically alongside dual Accusilicon femtosecond crystal oscillators to provide a clean, jitter-free sound presentation. The DC-Tonfa supports dedicated NOS mode and has 4 custom digital filters as well.

Strong, Sensational Output With Desktop-Grade Amplification Stage:-

iBasso built its legacy on premium portable players, and they have poured that expertise directly into the amplification circuit of the DC-Tonfa. It houses an aggressive player-grade architecture featuring 2 high-performance Texas Instruments dual OP-AMPs and 4 BUF634A buffers. This complex OPAMP design produces a strong output, reaching up to 800mW per channel at 32Ω impedance loads. With such a strong output thrust, the iBasso DC-Tonfa works flawlessly with demanding IEMs and Headphones. It offers supreme bass control, excellent midrange coherency, and clean treble extensions with such a powerful amplification section.

Exclusive Build with Aluminium Alloy Chassis:-

iBasso has a history of designing well-made and solid-performing portable DAC/AMPs. The latest DC-Tonfa is no different. The chassis is machined from premium aluminium alloy and flanked by tempered glass panels, echoing a sharp, modern precision. This rigid full-metal chamber isn't just for aesthetics, it houses a brilliant 0.96-inch OLED screen and a multi-function rotary dial for absolute control over volume and settings.

Ultra-Low Noise Power Supply Design:-

iBasso DC-Tonfa actively minimizes unwanted electrical noise by utilizing Linear Technology’s flagship LT3042 ultra-low noise LDO regulator. Delivering power that is cleaner than most battery-operated devices with a noise floor as low as 0.8μV, it allows the complex R2R configuration to blend the frequency bands with a pristine, jet-black background.

Multi-Device Compatibility:-

iBasso DC-Tonfa is a versatile device which you can use with a wide range of devices with its dedicated UAC1.0 and UAC2.0 modes. It seamlessly integrates well with Windows, MacOS, Android, iOS, and gaming devices that require UAC1.0 mode specifically. The 3.5mm output also supports digital optical SPDIF output.

Specifications

DAC: 8CH R2R DAC
USB Input: Up to PCM 768kHz
                  Up to DSD512x
Weight: 45g
Dimensions: 61mm × 34.6mm × 15mm

4.4mm Balanced Headphone Output:

SNR: 122dB AES17-20k A-wt
Dynamic Range: 123dB AES17-20k A-wt
THD+N: 0.004%
Output Power:
800mW + 800mW @ 32Ω; THD < 0.5%
Output Voltage: 5.2Vrms (High Gain)
                          2.6Vrms (Low Gain)
Channel Separation: 124dB
Frequency Response: 10Hz–22kHz (-0.3dB)
                                   10Hz–40kHz (-0.8dB)
Output Impedance: 0.5Ω

3.5mm Single-Ended Headphone Output:

SNR: 118dB AES17-20k A-wt
Dynamic Range: 115dB AES17-20k A-wt
THD+N: 0.0056%
Output Power: 219mW + 219mW @ 32Ω; THD < 0.1%
Output Voltage: 2.6Vrms (High Gain)
                          1.3Vrms (Low Gain)
Channel Separation: 121dB
Frequency Response: 10Hz–22kHz (-0.3dB)
                                   10Hz–40kHz (-0.8dB)
Output Impedance: 0.2Ω